Shock-absorbing spring.



A. iv]. DICKLIN & J. RlPPCHENk SHOCK ABSORBING SPRING.

APPLICATiON FILED FEB. 13' I917 sr ras PATE T, ormcn. Abel-i=1: ugmcxnnv ann Joni: mrrcnniv, or srouenron, WISCONS IlbL snocir-assonnriresrnmo. if

1,235,190. 1 Specification or Lettrslatent. P t t 1,531, 1 5

Application filed February 13,1917. -Ser1a1No. 148,398. To all whom it may concern: I and over which the opposite ends of the said' Be it known that we, ADOLPH M. DICKLIN leaves are turned as at 15 in tubular arrangeand JOHN RIBPCHEN, citizens of the United ment, ournaling the 'leaf therebetween States, residing at Stoughton, the county which normally assumes a semi-circular 60 5 of Dane and State of Wisconsin, have inform. One plntle 14 is suspended from its vented certain new and useful Improvements bracket 12 by a link 12. in Shock-Absorbing Springs, of which the .Two leaves 16, of substantially the same following is a specification. V len 11 and form as the leaf 13, are arranged This invention relates to new and useful an at engagement therewith; while a rela 85 improvements in shock absorbing spring tlvely shorter leaf 17 is similarly positioned.

The primary object of the invention isthe Two substantially straight auxiliary leaves provision of a leaf spring construction prov 18 are positioned therebeneath, being of subvided with auxiliary meansadapted to be stantlally. the same length as the leaf l6, brought into actionupon an increased load while all of the aforementloned leaves are 7o bein exerted upon the device, the construcsecured together centrally bya bolt 19 in the tion being easy and inexpensive to manufac formation of a unitary leaf sprlng. Yoke ture and possessing great strength and duraor strap bolts 20'enc1rcle all of the leaves of bility. p the spring and are ad ustably looked through A further object of the device is theproa connecting plate 21 carried by the said 20 vision'of avehicle spring having a ortion bolts beneath the axletree l1 and whereby thereof serviceable in taking up ad itional he spr1ng 1 s secured to the axletree for loads as well as absorbing shocks and jars service. 7 l p v incident totraveling whereby a light load a The lower one of the two leaves 16 has its will be suitably mounted resiliently although opposite ends, provided with notches 22 and 25 the spring will be serviceable for use with the bifurcated portions 23 overturned for reheavy loads. v e ceiving pms 24 therethrough, while U- It will be understood that this form 0 shaped clips 25span the leaf 1 3-andthe adspring is serviceable with any manner of --;|acent leaf 16, being providedwith spaced vehicles but is especially adapted for-autoears. 26 havm 3ournahngperforations 27 so mobiles, the same consisting in the novel therem throug which the pins 2 1 pass, the

combination and arrangement of parts heresaid pins being retained in any suitable inafter fully-described and illustrated in the manner. A flat link is swingingly-mountappended drawing, and in which like desiged upon each of the pins 24 within the afore nating characters refer to corresponding ment1oned slots 22,the said links depending 35 parts throughout the severalviews, J through alming-slots 29 arranged adjacent Figure l is a side elevation of the device the opposite free ends of the auxiliary leaves partly broken away, 7 18 of the-spring. Stop'lu s 30 of any de- Fig. 2is a horizontal sectional view taken sired form, being preferab y of cylindrical upon lines II-II of Fig. 1, p arrangement, are arranged upon opposite 40 Fig. 3 is a vertical transverse sectional sides of the links 28 at a point between the view through the device, leaves 16 and 18, and being normally out of Fig. 4 is a perspective view of one of the enga ement' therewith, while a similar cyclips employed, and v lindrical lug 31 is arrangedupon each side Fig. 5 is a perspective view of an end oftheflinks 28 adjacentthe lower free ends 45 portion of one of the main leaves of the thereof and beneath the auxiliaryleavs 18, sprin A as clearly shown in Fig. 1.. Re erring more in detail to the drawing, In operation, a light load upon the rail 10 the device is illustrated in connection with a will be resiliently carried by the four main side rail 10 of a vehicle and the axle-treell leaves 13, 16 and 17 of the sp while 50 thereof, the spring being interposed there- "any sudden jar or an increased ti :5 placed between adapted for resiliently mounting upon the rail 10 depresses the opposite ends the rail upon the axletree. Mounting brackof the main leaves bringing the lugs 30 into ets 12 are secured to the rail 10 in spaced contact with the upper faces of the adjacent relations, having the principal leaf 13 of the auxiliary spring 18 whereby the latter assists 1 9" '55 main leaves pivotally suspended therefrom in supporting the load. The normal position by pintle bolts 14 carried by the said brackets of the membersbeing illustrated in Fig. 1,

it will be also apparent that any sudden jar as well as an excessive load will bring the stops 30 into engagement with the auxiliary leaves 18 thereby relieving the main leaves of the spring. Upon the return movement of the main leaves, the lower stops 31 will engage the auxiliary leaves 18, thereby cushioning as well as limiting the movement of the main leaves, both sets of lugs 30 and 31 serving as a shock absorbing means in connection with the auxiliary leaves 18. It will be understood that the link 12 allows the spring to lengthen during the operation of thedevice. p

What I claim as new is:

1. A leaf spring construction comprising a plurality of main leaves, auxiliary leaves of difierent longitudinal form centrally secured to the said main leaves, and means for guiding and limiting the movements'of the ends of the auxiliary leaves loosely associated therewith and pivotally connected to the ends of the main leaves.

2. A spring comprising normally curved main leaves, approximately straight auxiliary leaves centrally secured thereto, and limiting connections between the opposite end portions of the main and auxiliary leaves pivoted to the main leaves and loosely associated with the auxiliary leaves- .3. A device of the class described comprising a plurality of main leaves, a plurality of approximately straight leaves, a connector centrally securing all the leaves together, and limiting links for the auxiliary leaves carried by the main leaves, the secondnamed leaves remaining functionless under slight stress upon the main leaves.

4. A device of the class described comprising a plurality of main leaves, a plurality of approximately straight leaves, a connector centrally securing all the leaves together, depending links pivoted to the under surface of the main leaves, and stop lugs carried by the said links arranged adjacent the opposite faces of the said auxiliary leaves.

5. A- spring comprising brackets, main leaves j ournaled between the said brackets, auxiliary leaves centrally attached to the main leaves and having slots adjacent their free ends, links pivotally depending from the main leaves and extending through the said slots, and oppositely arranged pairs of limiting stops carried by the said links at opposite sides of the auxiliary leaves.

6. A sprin curved main leaves, the ends of one o the lower curved main leaves being notched and looped, pins journaled through the said lower ends, U-shaped clips spanning the adjacent leaves and. journale-d upon the said pins, auxiliary leaves centrally secured to the said main leaves, having slots therethrough, links journaled upon the said pins within the notches of the aforementioned main leaves and slidably arranged through the slotted leaves, and limiting stops upon the said links adapted for engagement with the auxiliary leaves during the operation of the device.

In testimony whereof we afiix our signatures.

ADOLPH M. nicxLnv. JOHN RIPPCHEN.

comprising flatly enga ing a 

